Spring-hinge.



110.747.274. ,l PATBNTBD DEG. 15, 1903. H. TSGHERNING.

SPRING HINGE.

` r APPLIUATION FILED AUG. 1, 190s.

No MODEL.-

UNITED atented December 15, 1903.

HENRY TSOHERNING, OF FREEPORT, ILLINOIS, ASSIGNOR TO ARCADE MANUFACTURING COMPANY, OF FREEPORT, ILLINOIS, A CORPORA- TION OF ILLINOIS.

SPRING-Hines.

sPEcIFrcATIoN forming para of Letters Patent No. 747,274, dated December' 15, 190s.

Application filed August l, 1903.

To all whom, it may concern.-

Be it known that I, HENRY TsoHERN1NG,a citizen of the United States of America, residing at Freeport, in the county of Stephenson `and State of Illinois, have invented certain new and useful Improvements in Spring- Hinges, of which the following is a specificalion.

My invention relates to certain improvements in spring-hinges of the class known as holdback spring-hinges, which are intended for use upon screen-doors and thelike and which are preferably so constructed as to exert the tension of the spring to hold the door either closed or wide open and to return the door to either of these positions when slightly removed therefrom. When thus constructed, these hinges are arranged to close the door from any position into whichit maybe brought in ordinary use in passing through it and to throw the door wide open and hold it in that position if open beyond the limit in ordinary use. The extensive use to which hinges of this class have been applied and the sharp competition in their manufacture has made it exceedingly desirable that the hinges be made as cheap and simple as possible, that the greatest attention be given to the spring provided therein, so that it may not be of such a nature or so applied to' the hinge as to be likely to become set or lose its tension, and that the hinge as a whole be easy of attachment to the door-casing, so that both door and hinge maybe readily removed therefrom at the end of the season during which the screen-doors are needed.

To these ends and others my invention consists in certain features of novelty which will appear in the following description and the essentialcharacteristics of which will be pointed out inthe claims.

In the drawings, Figure l is a face View of the hinge, showing the same applied to the casing and door and showing the latter in its closed position. Fig. 2 is a horizontal section looking downward in line 2 2 of Fig. l. Fig. 3 is a vertical section looking in the direction of the arrow in line 3 3 of Fig. l. Fig. 4 isa View similar to Fig. l of the right-hand leaf of the hinge, and Fig. 5 is a similar view of semi No. 167.835. (No model.)

` a fastening-plate by means of which the righthand leaf is secured to the casing.

Referring to the drawings, A B are the two leaves of the hinge, which are preferably of sheet metal, turned at right angles at their 'opposite ends to form the ears or knuckles d et b b, which are pivoted together by means of rivets C O. Theinner edge of the leaf B is rolled backward to form a longitudinal socket band adjacent to the upper end thereof, as shown in the drawings, a tongue b3 extends past the pivotal axis of the springinto a notch a2 in the leaf A. The socket and tongue provide means for securely holding in position a U-shaped spring D, having a coil d at its middle portion to increase its limit of elasticity and a transverse bend cl' to rest against the tongue b3 and prevent the spring from pivoting upon one of its arms which is held in the socket d2. The leafAhas a tongue 0.3 extending therefrom past the pivotal axis of the hinge and perforated at a4. This tongue is connected to the other end cl2 of the spring by means of a link E, passing around the end of the spring and through the perforation in the tongue. The action of the spring upon the hinge will be understood from an examination of Fig. 2. The tension of the springis of course such as to tend to separate the arms therefrom, so that when in the position seen in Fig. 2 the spring tends to draw the plate A toward the plate B behind the pivotal axis of the hinge, therefore tending to draw the door toward the closed position. Said door is lettered X and the door-casing Y. If now the door be brought forward from the position seen -in Figs. l and 2, the link E, which connects the spring with the tongue a3 of the leaf A, will swing upon its pivotal connection until said link passes through the hinge-axis, and thereafter the spring will tend to draw the two leaves of the hinge together upon the opposite side of the pivot, thereby tending to hold the door open.

It is intended that this hinge shall be secured to the door by means of screws in the ordinary manner. It is to be attached to the casing,' however, by means of a fasteningplate F. (Shown separately in Fig. 5 by means of a face view.) Said plate consists of two IOO at portions ff, which are to be screwed to the door-casing and which are connected by a central bridge f2, which is bent forward into the form of a staple or socket. Theleaf A has a perforation a5, fitted to this socket and formed by bending the metal of the leaf, which is displaced therefrom back upon itself to form forwardly-convex portions a6 a7. When the leaf is placed upon the fasteningplate with the socket extending through this perforation, a nail or pin Gis passed through the socket and is preferably of such size as to put under tension both the metal of the socket and of the convex portions o,6 a7 of the leaf A. Such tension serves to hold the pin in piace and also to secure the leaf A in position.

I claim as new and desire to secure by Letters Patent- 1. In a spring-hinge, the combination of two leaves pivoted together, one of which is formed with a longitudinally extending socket adjacent to the meeting edges of the leaves, the other leaf being formed with a tongue projecting laterally over and above the rst-named leaf, a U-shaped spring supported wholly upon the first-named leaf, one of the legs of which is seated in said socket and bent at the end to engage the leaf to prevent bodily rotation of the spring in said socket, and a link connecting the free end of the spring with the tongue upon the other leaf. f

2. The combination with the pivoted leaves of a hinge, one of which is provided with a perforation and wedge portions adjacent thereto, of a fastening-plate having a socket fitted to said perforation and adapted to extend therethrough, and a pin fitted to said socketV and adapted to wedge itself between the sanne and the leaf of the hinge.

3. The combination With the pivoted leaves of a hinge, one of which is provided with a perforation and elastic portions adjacent thereto, of a fastening-plate having a socket fitted to said perforation, and a pin adapted to enter said socket and bear closely upon said spring portions.

4. The combination with the pivoted leaves of la hinge, one of which is provided with a suitable perforation, of a fastening-plate coinposed of two flat portions,f, f', connected by a forwardly-projecting bridge or socket portion, f2, fitted to said perforation.

5. The combination with the pivoted leaves of a hinge, the metal of one leaf of which is displaced to form a perforation, the displaced metal being folded back upon theleaf to form elastic portions adjacent to the perforation, of a fastening-plate having a socket adapted to register with the perforation, and a pin adapted to enter the socket and bear upon the spring portions to hold the fasteningplate and leaf closely together.

In witness whereof I have signed the above application for Letters Patent, at Freeport, in the county of Stephenson and State of Illinois, this 24th day of July, A. D. 1903.

HENRY TSCHERNING.

Witnesses:

FRED E. BOEDEKER, B. C. HERBIG. 

